abc news searches for solutions, after the tragedy at sandy hook. and here's abc's alex perez. >> reporter: in tiny wichita falls, texas, some students say there's one thing that makes them feel safer. their teachers are armed. >> i like it, because it kind of makes me feel safer. >> reporter: since 2007, the harold school district allows teachers with concealed handgun licenses to carry guns in the classroom. a move the superintendant is convinced will prevent a school shooting here. >> my goal is if someone tries to come in and hurt my little ones, that -- that they're killed. >> reporter: at edison high school in tulsa, oklahoma, armed guards patrol the hallways. >> i would rather have it and never have to use it than not have it and run into a situation where i couldn't do my job fully. >> reporter: about 28,300 schools have armed security staff on campus, according to the national center for education statistics. 20% of those primary schools, 54%, middle schools, 68% of those high schools have armed security. and since the tragedy at sandy hook